This command shell for LMS is based in "ladsh "by Erik W. Troan in own book:
"Linux Application Development" Michael K. Johnson,
Erik W. Troan. 1998 Addison Wesley.
It's a command shell very limited and with low efficiency, due to the didactics
searched by the author, but it has some perfectly explained fundamental ingredients
in the book:
- Built-in commands (a few).
- External commands execution.
- I/O redirection (>, <, |, etc).
- Jobs control.
We'll add new functionalities and a little more efficiency.
